National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
Design of the open wind tunnel measuring section
Behúl, Michal ; Grim, Robert (referee) ; Hájek, Tomáš (advisor)
This thesis deals with the design and optimization of the test section of an aerodynamic tunnel, focusing on achieving ideal flow conditions. The aim of the thesis is to design an open-jet section for the current setup of the aerodynamic tunnel at the Institute of Aerospace Engineering. The introduction of the work is dedicated to familiarizing with aerodynamic tunnels. The main part of this work is the design of the open-jet section, which involves the design of the nozzle and the collector. Subsequently, it includes verifying the functionality of the design through calculations and CFD simulations.
Propulsion unit of competition model airplane
Vančo, Miroslav ; Matějů, Jiří (referee) ; Hájek, Tomáš (advisor)
This bachelor´s thesis deals with the design and validation of the operation of the model propulsion system, according to the Aero Design East rules. The introduction is focused on rules and regulations of the competition and then, the point analysis is carried out. The research section is devoted to an overview of the propulsion system components and their basic parameters. The most appropriate configurations of the propulsion system are selected, based on calculations from the manufacturer´s datasheet. These configurations are then validated by measurements of static thrust and measurements in aerodynamic tunnel. In these measurements, the responses of the limiter for boundary power are also examined. In the last part, the choice of the propulsion system is completed.
Flow around winglet
Grešáková, Kristýna ; Rudolf, Pavel (referee) ; Sluše, Jan (advisor)
The first part of this bachelor´s thesis deals with the use of winglets and fluid flow around them. The second part provides a view of model experiments, anemometry and visualization of flow. The final section focuses on real experiment in aerodynamic tunnel.
Crosswind Sensitivity of Road Vehicles
Vančura, Jan ; Dundálek, Radim (referee) ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
The aim of the thesis is to devise a methodology which is capable of reliable evaluation of road vehicle’s crosswind sensitivity. The work consists of writing the mathematical model of a vehicle which includes aerodynamic loads and conducting a validation by means of technical experiment as defined by ISO 12021. A sensitivity analysis describing the influence of individual inputs on evaluation criteria of vehicle’s crosswind sensitivity is performed using the model, thereby establishing the overall model error caused by possible inaccuracies of input parameters. At the end, the relationship between discrete pressures on the surface of the vehicle in several aerodynamic configurations and the properties representing the vehicle’s motion is presented.
Propulsion unit of competition model airplane
Vančo, Miroslav ; Matějů, Jiří (referee) ; Hájek, Tomáš (advisor)
This bachelor´s thesis deals with the design and validation of the operation of the model propulsion system, according to the Aero Design East rules. The introduction is focused on rules and regulations of the competition and then, the point analysis is carried out. The research section is devoted to an overview of the propulsion system components and their basic parameters. The most appropriate configurations of the propulsion system are selected, based on calculations from the manufacturer´s datasheet. These configurations are then validated by measurements of static thrust and measurements in aerodynamic tunnel. In these measurements, the responses of the limiter for boundary power are also examined. In the last part, the choice of the propulsion system is completed.
Flow around winglet
Grešáková, Kristýna ; Rudolf, Pavel (referee) ; Sluše, Jan (advisor)
The first part of this bachelor´s thesis deals with the use of winglets and fluid flow around them. The second part provides a view of model experiments, anemometry and visualization of flow. The final section focuses on real experiment in aerodynamic tunnel.
Crosswind Sensitivity of Road Vehicles
Vančura, Jan ; Dundálek, Radim (referee) ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
The aim of the thesis is to devise a methodology which is capable of reliable evaluation of road vehicle’s crosswind sensitivity. The work consists of writing the mathematical model of a vehicle which includes aerodynamic loads and conducting a validation by means of technical experiment as defined by ISO 12021. A sensitivity analysis describing the influence of individual inputs on evaluation criteria of vehicle’s crosswind sensitivity is performed using the model, thereby establishing the overall model error caused by possible inaccuracies of input parameters. At the end, the relationship between discrete pressures on the surface of the vehicle in several aerodynamic configurations and the properties representing the vehicle’s motion is presented.
Physical modelling of dispersion of dangerous gases at Old Town Square in Prague
Klouda, K. ; Bezpalcová, Klára ; Jaňour, Zbyněk
Contribution describes preparation of the wind-tunnel modelling of flow and dispersion at Old Town Square and its surroundings. Study of different approach, wind directions and positions of the sources were conducted to estimate concentration lay-out at whole square and its dependency on the wind speed and the way of the gas release.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.